Quarter	US dollars
2004-12-31	359
2005-03-31	268
2005-06-30	317
2005-09-30	156
2005-12-31	158
2006-03-31	342
2006-06-30	83
2006-09-30	288
2006-12-31	836
2007-03-31	222
2007-06-30	-70
2007-09-30	112
2007-12-31	22
2008-03-31	30
2008-06-30	299
2008-09-30	346
2008-12-31	1870
2009-03-31	1850
2009-06-30	1670
2009-09-30	1748
2009-12-31	1851
2010-03-31	1585
2010-06-30	1777
2010-09-30	2239
2010-12-31	1598
2011-03-31	1964
2011-06-30	1920
2011-09-30	3127
2011-12-31	2330
2012-03-31	2148
2012-06-30	6271
2012-09-30	7131
2012-12-31	3080
2013-03-31	2336
2013-06-30	2143
2013-09-30	3521
2013-12-31	2359
2014-03-31	1224
2014-06-30	419
2014-09-30	597
2014-12-31	652
2015-03-31	2107
2015-06-30	2410
2015-09-30	2487
2015-12-31	2581
2016-03-31	3165
2016-06-30	2957
2016-09-30	2603
2016-12-31	1732
2017-03-31	1685
2017-06-30	1205
2017-09-30	995
2017-12-31	1016
2018-03-31	971
2018-06-30	1005
2018-09-30	1037
2018-12-31	1075
2019-03-31	1196
2019-06-30	1480
2019-09-30	933
2019-12-31	958
2020-03-31	1006
2020-06-30	975
2020-09-30	1141
2020-12-31	1035
2021-03-31	986
2021-06-30	937
2021-09-30	1115
2021-12-31	1371
2022-03-31	1599
2022-06-30	1450
2022-09-30	1318
2022-12-31	1230
2023-03-31	1258
2023-06-30	1160
2023-09-30	999